FIGURE 4.

Activity of BhCel5B and BhGH5-Ig against plant cell walls. The experiments were carried out as described under “Experimental Procedures.” A and C show representative micrographs of stem sections probed with antibodies (A shows tobacco stem sections probed with rat monoclonal antibody LM15 directed to xyloglucan, and C shows miscanthus stem sections probed with a mouse monoclonal antibody directed to β-1,3–1,4-glucan). B shows the quantified fluorescence intensities of the antibodies binding to equivalent stem sections after enzymatic treatments.